Ortho Oracle - orthopaedic operative atlas

Platlet Concentrate: (Random Donor)

– See:        – Bld Prod Menu        – Transfusion Therapy – See: Bleeding secondary to Platlet abnormalities: – Discussion:     – volume: approximately 50 mL (60 x 10^9 platlets -? 1-5 x 10^11);     – one unit of platlet concentrate can raise the platlet count by 10,000;   … Read more

Plicamycin (Mithramycin)

– Discussion:     – inhibitor of RNA synthesis in osteoclasts;     – an effective treatment for hypercalcemia;     – given intravenously in a dose of 25 microg per kilogram over a period of four to six hours;     – dose can be repeated several times at intervals of 24 to 48 … Read more

Plate Fixation of Proximal Humeral Frx

– Discussion:      – indicated for displaced surgical neck, 3 part, and 4 part fracture;       – deforming forces:             – pectoralis major pulls the shaft medially, anteriorly and internally rotates;             – supraspinatus abducts the head fragment in two part fractures;             – w/ greater tuberosity is fracture, it will be pulled superiorly … Read more

Plantar Keratosis

– See: Orthotics for the Foot: – Plantar Keratosis:     – this callus is a circumscribed keratotic area which may or may not be associated with a hammered great toe;     – kerkatosis often resembles verruca plantaris, for which it is mistakenly treated until the keratosis breaks down and ulcerates or leaves a permanent … Read more

Plantar Muscles of the Foot

– See: Innerv. Musc. Lower Limb – Plantar muscles of the foot are divided into 4 layers; – 1st Layer: – first two layers originate from calcaneal tuberosity and the other two from the metatarsal shafts; – first subfascial layer consists (from lateral to medial) of the ADM, FDB, & abductor hallucis; – plantar fascia … Read more

Plantar Warts: (Verruca Plantaris – Papillomas of the Sole)

– Discussion:     – caused by a DNA virus of the Papovirus group;     – characterized by localized lesions w/o central core and with sharp margins and high vascularity (vigorous punctate bleeding with shaving)             and pain with lateral compression;     – three groups: solitary warts with surrounding callus     – multiple warts … Read more

Plantaris

– Anatomy:     – origin: the inferior aspect of the lateral prolongation of the linea aspera and from the          oblique popliteal ligament of the knee joint;     – insertion: the medial posterior part of the calcaneus, via achilles tendon;     – action: plantar flexes the foot at the … Read more

Plate Fixation

– Discussion:   – arthrodesis with plate fixation usually employs two plates;   – two staggered dynamic compression plates-one placed medially and one placed laterally–are contoured to the knee;   – twelve-hole plate is recommended;   – above-the-knee cast is used, with weight-bearing as tolerated, until radiographs show that the arthrodesis site has united Knee arthrodesis with … Read more